摘要
对江陵凹陷地下卤水进行了75℃等温蒸发实验,以了解卤水在蒸发过程中的化学组成变化,查明卤水的析盐规律和各离子的富集规律,为该卤水的综合利用提供理论依据。实验结果表明,江陵地下卤水在75℃等温蒸发过程中的析盐顺序为:氯化钠→氯化钠+氯化钾→氯化钠+氯化钾+氯化铵→氯化钠+氯化钾+氯化铵+硼酸;微量元素锂、铷、铯、碘和溴高度富集于老卤中,有利于这些元素的提取和综合利用。
Isothermal evaporation experiment at 75℃on the underground brine in Jiangling Depression was carried out to find out the laws of chemical composition change and salt crystallization and ions enrichment.The experimental results show that sodium chloride,potassium chloride,ammonium chloride and sassolite are crystallized out sequentially during the isothermal evaporation process.Also,the trace elements of lithium,rubidium,cesium,iodine and bromine are enriched greatly in the old brine.The experiment and study provide an important basis for the extraction and comprehensive utilization of these elements.
引文
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